The story
- Old English · inherited fromlǣċecræft“medicine”
- Middle English · inherited fromlechecraft“practise of medicine”
- English todayleechcraft
From Middle English lechecraft (“practise of medicine”), from Old English lǣċecræft (“medicine”), equivalent to leech + -craft. More at leech, craft.
Etymology from Wiktionary, CC BY-SA 4.0.